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Aromatic building blocks

3-Hydroxy-N-phenylaniline

Also known as 3-Hydroxydiphenylamine, 3-Anilinophenol, Phenol, 3-(phenylamino)-

CAS 101-18-8Formula C12H11NOMolar mass 185.23 g/molEC 202-923-6
GHS signal word: Danger. Pictograms: Corrosive, Harmful or irritant, Hazardous to the environment 10 suppliers listed
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3-Hydroxy-N-phenylaniline chemical structure, C12H11NO, CAS 101-18-8
2D chemical structure

Key facts

What buyers check first

All properties
Physical form
Powder
Melting point
81.1 to 82.2
Boiling point
340 °C
Solubility
Less than 1 mg/mL at 72.5 °F
HS code
292229
Category
Aromatic building blocks
UN number
UN 2512
Illustrative photo, closed jumbo bulk bags in a warehouse in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is 3-Hydroxy-N-phenylaniline?

Plain description, key identifiers and synonyms

3-hydroxydiphenylamine is a substituted aniline.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3-anilinophenol
CAS number
101-18-8 CAS number cross-checked
EC numbers
202-923-6, 689-700-0
Molecular formula
C12H11NO
UNII
E39Q946GO3
MDL number
MFCD00002262
InChIKey
NDACNGSDAFKTGE-UHFFFAOYSA-N
InChI
InChI=1S/C12H11NO/c14-12-8-4-7-11(9-12)13-10-5-2-1-3-6-10/h1-9,13-14H
SMILES (canonical and isomeric)
C1=CC=C(C=C1)NC2=CC(=CC=C2)O

Synonyms

  • 3-Hydroxydiphenylamine
  • 3-Anilinophenol
  • Phenol, 3-(phenylamino)-
  • m-Anilinophenol
  • 3-Phenylaminophenol
  • Amine,diphenyl,3-hydroxy
  • m-(Phenylamino)phenol
  • 3-Hydroxyphenylamine phenyl
  • 3-(Phenylamino)phenol
  • m-Hydroxydiphenylamine
  • Phenol, m-anilino-
  • N-(3-Hydroxyphenyl)aniline
  • m-Oxydiphenylamin
  • 3-Anilinophenol #

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Physical form
Powderexp.
Melting point
81.1 to 82.2exp.
Boiling point
340 °Cexp.
Solubility
Less than 1 mg/mL at 72.5 °Fexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
185.23 g/molcalc.
Exact mass
185.0841 Dacalc.
LogP (octanol/water)
3.14calc.
Topological polar surface area
32.26 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
2calc.
Heavy atoms
14calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccc(Nc2ccccc2)cc1

c1ccc(Nc2ccccc2)cc1

2 rings, 13 atoms, the Diphenylamine ring system.

3,181 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H318Causes serious eye damage.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
  • H411Toxic to aquatic life with long lasting effects.
Precautionary statements (23)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P317Get medical help.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 2512

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

3-Hydroxy-N-phenylaniline suppliers

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Where suppliers are based

10 suppliers in 6 countries

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3-Hydroxy-N-phenylaniline price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 3-Hydroxy-N-phenylaniline is traded under.

HS 2922.29Indicative HS code

Amino-naphthols and other amino-phenols, other than those containing more than one kind…

World exports in 2024
$467M
−15.3% vs 2023, imports $454M
2019 to 2024
Top exporters
  1. China63.1%
  2. India * partner reported15.5%
  3. Japan4.0%
Top importers
  1. India * partner reported25.8%
  2. United States14.4%
  3. South Korea7.6%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for 3-Hydroxy-N-phenylaniline is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 3-Hydroxy-N-phenylaniline, based on the data on this page

What is 3-Hydroxy-N-phenylaniline?

3-hydroxydiphenylamine is a substituted aniline.

What is the CAS number of 3-Hydroxy-N-phenylaniline?

The CAS registry number of 3-Hydroxy-N-phenylaniline is 101-18-8.

What is the molecular formula and weight of 3-Hydroxy-N-phenylaniline?

The molecular formula of 3-Hydroxy-N-phenylaniline is C12H11NO and its molar mass is 185.23 g/mol.

What is 3-Hydroxy-N-phenylaniline used for?

Known uses and roles of 3-Hydroxy-N-phenylaniline include building blocks in research and laboratory and screening compounds in research and laboratory.

Is 3-Hydroxy-N-phenylaniline hazardous?

3-Hydroxy-N-phenylaniline carries the GHS signal word "Danger". Main hazards: harmful if swallowed, causes skin irritation, causes serious eye damage. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 3-Hydroxy-N-phenylaniline?

3-Hydroxy-N-phenylaniline is usually classified under HS code 292229 (Amino-naphthols and other amino-phenols, other than those containing more than one kind…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 3-Hydroxy-N-phenylaniline?

CompoundList lists 10 suppliers of 3-Hydroxy-N-phenylaniline in China, India, Hong Kong, Japan and 2 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy 3-Hydroxy-N-phenylaniline in India?

3 suppliers in India list 3-Hydroxy-N-phenylaniline on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of 3-Hydroxy-N-phenylaniline?

Suppliers quote 3-Hydroxy-N-phenylaniline on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle 3-Hydroxy-N-phenylaniline

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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